FusionReactor Observability & APM

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Technical Blogs

Java VisualVM alternative, jvisual alternative, jvisualvm alternative

Java Visualvm alternatives

What can FusionReactor (the Jvisual alternative) do that Java VisualVM can’t? This article compares both tools; which will work best for your use cases? … Read More

Debug-Production-Title-Image

How to debug in production

How to debug in production Debugging in production has always been something that we try our best to avoid, with multiple QA phases, staging environments, and automation to stop production bugs. Despite this, occasionally a bug will find its way … Read More

how to Troubleshooting high CPU usage

Troubleshooting high CPU usage in Java environments

How to troubleshoot high CPU usage In this scenario, our CPU is spinning at an abnormally high rate. We will then take a look at FusionReactor and see how it picks up this issue. For the test environment, we are … Read More

Parse Variable Patterns using Regex

Parse Variable Patterns using Regex

What is parsing? Parsing is a very important process when handling logs because it lets users filter logs in useful ways. Unstructured logs can easily be shared into attribute (key/value) pairs, which helps to create improved alerts and charts. There … Read More

How to Parse JSON data in JavaScript

How to Parse JSON data in JavaScript

Assuming that you’ve used a web app before, there is a strong possibility that it uses JSON format to create a framework, store and transmit data between its servers and connected devices. JavaScript Object Notation, which is popularly known as … Read More

fusionreactor 8.7.7 released

FusionReactor 8.7.7 Released

FusionReactor 8.7.7 has been released. With enhancements including improved alert emails, SpringBoot fixes, and more. Enhancements to Crash Protection API and DB time can now be found in both the request log and Crash Protection emails, making it easier to … Read More

New beta release – log alerting

Our most powerful alerting engine Log Alerting is now in beta and all beta users will immediately have access to this powerful query-based alerting engine. Set alerts on FusionReactor logs and ingested third-party logs. Your log data can be used … Read More

How to use Log Dashboards to gain actionable insight

How to use Log Dashboards to gain actionable insight

How to use Log Dashboards to gain actionable insight Logs have many valuable functions; they contain a considerable amount of data. Using log query languages such as LogQL allows you to get fantastic insights, but they rely on running queries … Read More

diagnosing a server attack

Diagnosing a server attack using logs

Diagnosing a server attack using logs  Imagine that your server is under attack. How would you diagnose the issue and understand its impact? You may have been aware of previous attacks and have seen significant spikes coming into your server. … Read More

diagnosing a server crash

Using logs to easily diagnose a server crash

Reasons for a server crash Java can crash in several ways and for several reasons. Sometimes it’s not easy to diagnose a server crash. For example, Your JVM may still be operational, but you cannot process requests anymore. Part of your application breaks … Read More